Steam heating apparatus



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With the tubular members 32 and 34 secured in position between the frames I2 and I4, the headers 42 Iare disposed to be connected to a source of supply of steam (not shown), a main valve 54 being employed for such purpose. One end of the valve -54 is connected to the source of supply (not shown), the other end being connected through flexible hose connections `56 4and 58 to control valves 60 and 62, respectively, which in turn are connected by the connecting pipes 64 and 66, respectively, to the headers 42 of the tubular members 32 and 34, respectively, the ends of the pipes 64 and 66 being disposed in the threaded passages 416 of the headers 42. The valves 66 and 62 are disposed for independent operation for controlling the steam supplied to the individual tubular members 32 and 34.

Each of the tubes 36 and 38, utilized in the tubular members 32 and 34, is provided with a plurality of openings 68 and l0, respectively, disposed in spaced relation to each other throughout the length of the tubes for permitting delivery oi the steam from the tubular members 32 and 34 to the strip material 22. As illustrated, Athe openings 68 and 'l0 are so angularly displaced in the tubes 36 and 38 that lines of extension of each cooperating pair of such openings meet adjacent the tubes 36 and 38, whereby the jets of steam flowing through the cooperating pair of openings 68 and 'l0 impinge on each other and are angularly deflected as a single stream in substantially a vertical direction toward the strip 22. As the pairs of openings 68 and 'l0 are closely spaced along the length of the tubular members 32 and 34 and as the force of the steam jets impinging one upon the other forces the steam to flow in a vertical direction, expansion thereof is sideways so that the steam delivered from one pair or set of cooperating openings overlaps the steam delivered by the adjacent pair of cooperating openings to form a blanket or curtain of steamat the point where it meets the strip material 22. In effect, a curtain of steam is delivered across the strip material 22, such curtain having a minimum thickness occasioned by the jets escaping from the cooperating pair of openings impinging upon each other adjacent the tubes 36 and 38. Of course, as will be evident from Figs. 1 and 2, the openings in the lower -tubular member 34 are in the upper side thereof and the openings in the upper tubular member 32 are in the lower side thereof so that the steam is delivered simultaneously to the opposite sides of the strip 22.

` In operation, the delivery of steam, either saturating or super-heated, to the strip 22 can 'be closely controlled to prevent condensation of moisture on the strip 22. As will be apparent, the steam is delivered in a very thin curtain in line contact across the strip 22 and the pressure of the steam can be closely controlled either by adjusting the escape or drain valves 52 or by ladjusting the control valves 60 and 62 which will control the input pressure of the steam to the individual tubular members 32 and 34, respectively. 'Ihe spacing or position of the tubular members 32 and 34 can be readily adjusted with respect to the strip material 22 so as to effect the thin curtain of steam impinging upon the strip 22. By adjusting the position of the tubular members 32 and 34 and controlling the valves 60 and 62, an efficient operation of the apparatus can be obtained so that the strip material passing between the tubular members 32 and 34 will be free of any condensation, while permitting the steam to function to effect better impregnation of the strip material.

The apparatus of this invention can be readily duplicated as the parts thereof are standard and can be readily assembled. By reinforcing the tubular members in the manner described, the tubular members can be made of any required length and will have sufficient strength so that any width of strip material 22 can be treated in the apparatus. In a specic example, where the tubular members 32 and 34 are formed with tubes 36 and 38 having a length of 112 inches each, the openings 68 and 'l0 are formed having a diameter of 0.031 inch with the lines of extension displaced at 45 from the vertical diameter thereof, the openings being drilled in line every inch over a length of 108 inches of the tubes. In this case, a inch by 5A; inch steel bar is brazed to the tubes 36 and 38 on the side thereof opposite the side containing the openings 63 and 'lll throughout the 108 inch length of the line of the openings in the tubes.

We claim as our invention:

1. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of cooperating openings therein for the discharge of steam in streams, the tubular members being arranged in pairs secured side by side to each other with the cooperating openings disposed to direct the streams of steam from one tubular member of a pair towards the streams of steam from the other tubular member of the pair to impinge one upon another to form a laterally expanding common thin curtain of steam flowing f1 om each pair of cooperating openings in a substantially vertical direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the plurality of tubular members.

2. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs secured side by side to each other with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from one tubular member of a pair towards the streams of steam from the other tubular member of the pair to impinge one upon another to form a laterally expanding common thin curtain of steam flowing from each paii of cooperating openings in a substantially vertical direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the plurality of tubular members.

3. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs secured side by side to each other with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperatvng'openings to impinge on eac-h other tofor'm a laterally expanding common thin curtain-of steam owing from each pair of cooperating openings in a substantially vertical direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the plurality of tubular members.

4. In apparatus :for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein ior the discharge of steam in streams, the tubular members being arranged in pairs secured side by side to each other with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the Vcooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam flowing from each pair of cooperating openings in a substantially vertical direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, means for reinforcing the secured members of yeach pair of the tubular` members to increase the strength thereof, and means for supplying steam to the plurality of tubular members.

5. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members beng arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip material therebetween, the tubular .members of each pair being secured side by side to eachother with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam nowing from each pair of cooperating openings in a substantially vertical `direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the plurality of tubular members.

6. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a Iplurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip material therebetween, the tubular members of each pair being secured side by side to each other with the openings therein being in spaced relation length- Wise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam iiowing from each pair of cooperating openings in a substantially vertical direction towards the strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, means for supplying steam to a plurality of tubular members, and means for selectively controlling the supply of steam to each of the pairs of tubular members.

7. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip vmaterial therebetween, the tubular members of each pair being secured side by side to each other throughout substantially their entire length with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam flowing from each pair of cooperating openings in a substantially vertical direction towards the .strip material to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for selectively supplying steam to each of the pairs of tubular members.

8. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip material therebetween, the tubular members of each pair being secured side by side to each other throughout substantially their entire length with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impingefon each other to form a laterally expanding common thin curtain of steam ilowing from each pair of cooperating openings in a substantially vertical direction towards the strip material to make ya substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, means disposed along each pair of the tubular members and secured thereto for reinforcing them, and means for selectively supplying steam to each of the pairs of tubular members.

9. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a 4plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip material therebetween, means for supporting the pairs of tubular members in said spaced relation, the tubular members of each pair being secured side by side to each other with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam owing from each pair of cooperating openings in a substantially vertical direction towards the' strip material to make asubstantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the plurality of tubular members.

10. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a plurality of tubular members having a plurality of openings therein for the discharge of steam in streams, the tubular members being arranged in pairs with the pairs positionally disposed in spaced relation to each other for receiving the strip material therebetween, means disposed for movement to a number of different positions for supporting the pairs of tubular members in said spaced relation, the tubular members of each pair being secured side by side to each other with the openings therein being in spaced relation lengthwise of the tubular members but angularly displaced to provide pairs of cooperating openings disposed to direct the streams of steam from the cooperating openings to impinge on each other to form a laterally expanding common thin curtain of steam flowing from each pair of cooperating openings in a substantially vertical direction towards the strip material to make substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for selectively controlling the supply of steam to each of the pairs of tubular members.

11. In apparatus for impingng steam against strip material as it moves in a predetermined direction, the combination comprising, a pair of tubular members disposed in spaced relation to each other for receiving the strip material therebetween, means for supporting the tubular members in said spaced relation, each of the tubular members comprising two tubes secured in line contact side by side to each other and disposed in the same horizontal plane, each tube of each pair having a plurality of openings disposed in spaced relation along the length of the tube adjacent the line contact for discharging steam in streams therefrom, the openings in the cooperating tubes of each tubular member being in the same spaced relation and so angularly displaced towards each other that lines of extension of the openings meet at points closely adjacent the tubes whereby streams of steam from the openings of one tube impinge against corresponding streams of steam from the openings of the other tube of the tubular member to form a laterally expanded thin curtain of steam flowing from each of the tubular members in a substantially vertical direction towards the strip material on opposite sides thereof so as to make a substantially line contacttherewith transversely of the strip as it is moved in the predetermined direction, and means for supplying steam to the pair of tubular members.

12. In apparatus for impinging steam against strip material as it moves in a predetermined direction, the combination comprising, a pair of tubular members disposed in spaced relation to each other for receiving the strip material therebetween, means for supporting the tubular members in said spaced relation, each of the tubular members comprising two tubes secured in line contact side by side to each other and disposed in the same horizontal plane, means disposed along the two tubes of each of the tubular members and secured thereto for reinforcing them, each tube of each pair having a plurality of openings disposed in spaced relation along the length of the tube adjacent the line contact for discharging steam in streams therefrom, the openings in the cooperating tubes of each tubular member being in the same spaced relation and so angularly displaced towards each other that lines of extension of the openings meet at points closely adjacent the tubes whereby streams of steam from the openings of the one tube impinge against corresponding streams of steam from the openings of the other tube of the tubular member to form a laterally expanded common thin curtain of steam flowing from each of the tubular members in a substantially vertical direction towards the strip material on opposite sides thereof to make a substantially line contact therewith transversely of the strip as it is moved in the predetermined direction, and means for selectively controlling the supply of steam to each of the tubular members.

WILLIAM D. MAURER. EDGAR L. WOLFE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 235,937 Delharpe Dec. 28, 1880 1,725,708 Fowler Aug. 20, 1929 2,008,230 Spooner July 16, 1935 2,037,047 Rosenberger Apr. 14, 1936 2,042,792 McCoy June 22, 1936 2,203,480 Wood June 4, 1940 2,204,801 Gessler June 18, 1940 2,255,859 Quigley Sept. 16, 1941 2,297,976 Nachtman Oct. 6, 1942 2,303,612 Case Dec. 1, 1942 2,308,511 Hilliard Jan. 19, 1943 2,312,186 Paddock Feb. 23, 1943 2,376,839 Wansker May 22, 1945 2,420,739 Dorsch May 20, 1947 

